When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hey, guys, I need a lil help, if ya have any ideas. My bike is a '16 Road Glide. I received my PV4. Once I connected it, it asked me to update the firmware (which I did). After that I attempted to flash a tune, and it told me I need to Read the ECU first. Problem is, it won't read. As soon as I try, it immediately fails. I get different fail messages. "Error: A step in the Read ECU process has timed out" "Error: Unknown Error" or "Error: Rejected". When I attemp to Read the ECU, the lights on the module respond as follows
Red stays solid, green flashes cyclically, blue flashes off for an instant, then returns to steady "on"
This is a stock bike (other than Air Cleaner and exhaust). I've pulled the fuses, which electrically removed anynother systems.
Fuel Moto said I'd need to go thru Dynojet's customer service, but the lack of help there is discouraging. I did get an email yesterday asking what the lights on the module did. I responded and haven't heard anything back. Sat on hold today for 20 minutes, and surprisingly, the gentleman who answered the phone was the same as who emailed me yesterday. His response was that "engineers are looking at it and will get back".
Anyone have any ideas? I'm frustrated right now with lack of help, and ready to see if I can just send it back and go with with either TTS or ThunderMax. I've used both in the past, and never had troubles with either.
If you bought it from FM, I’m surprised they didn’t offer more support, especially since I’ve never read a disparaging word from anyone about their lack of service/support after the sale.
Since it sounds like it wasn’t able to marry to the ECU, I’d pack that puppy up and send it back. There have been a lot of issues with the PV4.
I have no experience with the PV4 but something similar happened to me with my touch screen PV. I put the firmware in it for the new bikes instead of the 4/6 pin firmware for my 2015 Ultra.
And what, if any, is the workaround for getting a PV Tuner to work on a bike with a TTS tune installed on it? I have a PV-2B on the bench that DID have a tune installed on my 14 SGS a few years ago. But after doing a cam change, when I went to get the bike dyno tuned with the PV, the tuner guy said he couldn't get it to work right and I ended up having to buying a TTS for that tune, (and a few others later). He, the tuner guy, was/is 3.5 hours away and I didn't want to NOT get the tune done that day after trailering the bike all the way out there to the Bay Area. I still have a TTS tune in my bike at the moment. I'm thinking of going back the the PV-2B for convenience and possible Auto-Tune ability. Does the ECM have to be wiped in order to go back to the PV if TTS is on it now?
And what, if any, is the workaround for getting a PV Tuner to work on a bike with a TTS tune installed on it? I have a PV-2B on the bench that DID have a tune installed on my 14 SGS a few years ago. But after doing a cam change, when I went to get the bike dyno tuned with the PV, the tuner guy said he couldn't get it to work right and I ended up having to buying a TTS for that tune, (and a few others later). He, the tuner guy, was/is 3.5 hours away and I didn't want to NOT get the tune done that day after trailering the bike all the way out there to the Bay Area. I still have a TTS tune in my bike at the moment. I'm thinking of going back the the PV-2B for convenience and possible Auto-Tune ability. Does the ECM have to be wiped in order to go back to the PV if TTS is on it now?
If you have the TTS tuner that the bike was tuned with, you can just restore the original tune to the ECM and the TTS will be out of the loop....
If the bike was tuned with a TTS before you bought it, and you don't have the TTS tuner the bike was tuned with, you're stuck. I just checked and for the "TTS emergency unlock" to work, the website says it only works with the original tuner that programed the bike.
That's my only issue with the TTS tuner. If you get a bike tuned by a TTS, and you don't get the TTS tuner with bike, it's gonna cost you to modify, change, or remove the TTS tune..
Last edited by hattitude; Feb 28, 2025 at 09:18 PM.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.